Buyer Guides

Compare China and local suppliers for OEM programs that include machining, finishing, assembly, packaging, repeat production, supplier coordination and delivery recovery.

A clear BOM helps OEM assembly suppliers quote accurately and reduce project risk. Learn what buyers should include for custom parts, purchased components, specs, tests, packaging and annual demand.

A workflow article explaining how a factory manages OEM assembly projects from component review to packaging and delivery.

Learn why vague RFQs often lead to higher unit prices, slower quotation, longer lead times and more production risk for custom parts buyers.

A focused explanation of how factories review drawings before quotation, including dimensions, tolerances, materials, finishes and inspection requirements.

A focused checklist explaining which drawings, CAD files, samples, photos and revision records buyers should send before factory quotation.

Buyer RFQ Guide Complete RFQ Package Guide for Custom M […]

Why the Lowest Unit Price Can Increase Risk in Custom P […]

Understand why factories use sample approval to confirm dimensions, function, surface finish, packaging, inspection standards, and production readiness before mass production.

A factory-side overview of the RFQ review process after buyers send drawings, materials, quantities and project requirements.